Help! Composite in

F

Fabian Amann

Guest
Hi!
I've got a big problem - perhaps anybody can help me:

I want to connect my DVD player to my TV, but there is a problem: The TV
(Telefunken PALcolor 560V) is very old (20 years *g*) and it has no Video
input. It has a 6 pin diode connector, but only the audio relevant pins are
connected. The pin, where video should be transferred is not connected.
So, my idea:
Up to now, I have viewed DVD with my videorecorder in the middle, to
modulate the incoming videosignal from the DVD, so my TV can "read" it. But
there is one problem: When I am playing some DVDs, the picture starts
lighting up slowly, then the picture goes to dark and then it flashes. And
the same procedure again. So I measured the composite out of my DVD with an
oscilloscope and I found out, that, when I am playing some DVDs, on
TV-Scan-Line 2 to 10 occur a signal with about 200 kHz with variable
amplitude. Other scan lines are not affected. But if this signal runs
through my video tape recorder, the signal on the scan line 2 to 10 affected
the whole other and you can clearly see the diagram "dancing" in the rhythm
of this curious signal.
That's why I want to connect my DVD directly to my TV.
So far, my idea:
I will use the installed 6 pin diode connector. When a signal is connected
to this conector of the TV, the audio source from the tuner will be muted
and the signal from the 6 pin diode connector is played. No, I want to use
the signalling line from the 6 pin diode connector (I think +12 V (from the
DVD)) to switch a relay, which I want to locate between the composite output
from the tuner, from the opened line from tuner to the rest of TV and the
external composite input from the 6 pin diode connector.
But I have one problem: I do not know, where this location is in the TV? Or
do anyone now, if the tuner will give the demodulated composite signal
directly? Is there anyone who knows my TV or who has a datasheet or
schematics of this TV? Do anyone know this tuner-module?

Thank you very much!!!!
Fabian Amann

TV: Telefunken PALcolor 560V
TUNER-MODULE: On the side, there is a NSF logo
and following lines are on the tuner module:
Tuner 737 694
ET 066 DKC
AT-Nr. 349 357 054
The module has a four a wire cable and on the bottom 10 pins (3 of them are
connected with the chassis of the module), so there 7 pins which function i
do not know.
 
The problem with the brightness fading in and out is the copy protection on
the DVD. VCR's see this and it shows up in any tape you might want to record
from the DVD. I know you don't want to do any recording, you just want to
watch the darn movie and use your VCR to modulate the video and audio and
send that to your older TV.

I don't know anything about your TV internals so I am sorry I can't help you
there. If you had a schematic, or obtained a Sam's Photfact of your TV,
that might help.

I am also wondering if an external RF modulator might help. I do not
believe they have circuitry that is affected by the copy protection since it
is not a recording device. I may be wrong on that, however. Those
modulators are usually under $40 US at a Radio Shack or similar store. You
might also check with one of the larger TV retailers in your area and see if
they have something you can use to get around the copy protection.

My solution was to purchase a TV that had an S-video as well as a composite
video input. S-video is somewhat clearer than composite video, but is not
an output on some of the lower-end DVD players.

I have also found that my kids' X-Box hooked to the TV with the RF module
does not have the copy protection problem either and works fine.

Hope that helps.
"Fabian Amann" <news@amann.twam.info> wrote in message
news:2h9ctaFale8kU1@uni-berlin.de...
Hi!
I've got a big problem - perhaps anybody can help me:

I want to connect my DVD player to my TV, but there is a problem: The TV
(Telefunken PALcolor 560V) is very old (20 years *g*) and it has no Video
input. It has a 6 pin diode connector, but only the audio relevant pins
are
connected. The pin, where video should be transferred is not connected.
So, my idea:
Up to now, I have viewed DVD with my videorecorder in the middle, to
modulate the incoming videosignal from the DVD, so my TV can "read" it.
But
there is one problem: When I am playing some DVDs, the picture starts
lighting up slowly, then the picture goes to dark and then it flashes. And
the same procedure again. So I measured the composite out of my DVD with
an
oscilloscope and I found out, that, when I am playing some DVDs, on
TV-Scan-Line 2 to 10 occur a signal with about 200 kHz with variable
amplitude. Other scan lines are not affected. But if this signal runs
through my video tape recorder, the signal on the scan line 2 to 10
affected
the whole other and you can clearly see the diagram "dancing" in the
rhythm
of this curious signal.
That's why I want to connect my DVD directly to my TV.
So far, my idea:
I will use the installed 6 pin diode connector. When a signal is connected
to this conector of the TV, the audio source from the tuner will be muted
and the signal from the 6 pin diode connector is played. No, I want to use
the signalling line from the 6 pin diode connector (I think +12 V (from
the
DVD)) to switch a relay, which I want to locate between the composite
output
from the tuner, from the opened line from tuner to the rest of TV and the
external composite input from the 6 pin diode connector.
But I have one problem: I do not know, where this location is in the TV?
Or
do anyone now, if the tuner will give the demodulated composite signal
directly? Is there anyone who knows my TV or who has a datasheet or
schematics of this TV? Do anyone know this tuner-module?

Thank you very much!!!!
Fabian Amann

TV: Telefunken PALcolor 560V
TUNER-MODULE: On the side, there is a NSF logo
and following lines are on the tuner module:
Tuner 737 694
ET 066 DKC
AT-Nr. 349 357 054
The module has a four a wire cable and on the bottom 10 pins (3 of them
are
connected with the chassis of the module), so there 7 pins which function
i
do not know.
Click to expand...
 
Hi John!
Thank you very much for this information. Okay, the copy protection works
fine -- not good for me. So I will try this morning to find out more about
the PCB of my TV and then to feed the composite signal directly to my TV or
if I will fail I will try to use an external modulator. I've seen a
modulator for about $4 US in a discount shop, so I will try this next.
Thank you very much for your hints!
Fabian

"John Clayton" <t2charterREMOVE4SPAM@hotmail.com> schrieb im Newsbeitrag
news:pILrc.20$EZ2.45233@news.uswest.net...
The problem with the brightness fading in and out is the copy protection
on
the DVD. VCR's see this and it shows up in any tape you might want to
record
from the DVD. I know you don't want to do any recording, you just want to
watch the darn movie and use your VCR to modulate the video and audio and
send that to your older TV.

I don't know anything about your TV internals so I am sorry I can't help
you
there. If you had a schematic, or obtained a Sam's Photfact of your TV,
that might help.

I am also wondering if an external RF modulator might help. I do not
believe they have circuitry that is affected by the copy protection since
it
is not a recording device. I may be wrong on that, however. Those
modulators are usually under $40 US at a Radio Shack or similar store.
You
might also check with one of the larger TV retailers in your area and see
if
they have something you can use to get around the copy protection.

My solution was to purchase a TV that had an S-video as well as a
composite
video input. S-video is somewhat clearer than composite video, but is not
an output on some of the lower-end DVD players.

I have also found that my kids' X-Box hooked to the TV with the RF module
does not have the copy protection problem either and works fine.

Hope that helps.
"Fabian Amann" <news@amann.twam.info> wrote in message
news:2h9ctaFale8kU1@uni-berlin.de...
Hi!
I've got a big problem - perhaps anybody can help me:

I want to connect my DVD player to my TV, but there is a problem: The TV
(Telefunken PALcolor 560V) is very old (20 years *g*) and it has no
Video
input. It has a 6 pin diode connector, but only the audio relevant pins
are
connected. The pin, where video should be transferred is not connected.
So, my idea:
Up to now, I have viewed DVD with my videorecorder in the middle, to
modulate the incoming videosignal from the DVD, so my TV can "read" it.
But
there is one problem: When I am playing some DVDs, the picture starts
lighting up slowly, then the picture goes to dark and then it flashes.
And
the same procedure again. So I measured the composite out of my DVD with
an
oscilloscope and I found out, that, when I am playing some DVDs, on
TV-Scan-Line 2 to 10 occur a signal with about 200 kHz with variable
amplitude. Other scan lines are not affected. But if this signal runs
through my video tape recorder, the signal on the scan line 2 to 10
affected
the whole other and you can clearly see the diagram "dancing" in the
rhythm
of this curious signal.
That's why I want to connect my DVD directly to my TV.
So far, my idea:
I will use the installed 6 pin diode connector. When a signal is
connected
to this conector of the TV, the audio source from the tuner will be
muted
and the signal from the 6 pin diode connector is played. No, I want to
use
the signalling line from the 6 pin diode connector (I think +12 V (from
the
DVD)) to switch a relay, which I want to locate between the composite
output
from the tuner, from the opened line from tuner to the rest of TV and
the
external composite input from the 6 pin diode connector.
But I have one problem: I do not know, where this location is in the TV?
Or
do anyone now, if the tuner will give the demodulated composite signal
directly? Is there anyone who knows my TV or who has a datasheet or
schematics of this TV? Do anyone know this tuner-module?

Thank you very much!!!!
Fabian Amann

TV: Telefunken PALcolor 560V
TUNER-MODULE: On the side, there is a NSF logo
and following lines are on the tuner module:
Tuner 737 694
ET 066 DKC
AT-Nr. 349 357 054
The module has a four a wire cable and on the bottom 10 pins (3 of them
are
connected with the chassis of the module), so there 7 pins which
function
i
do not know.
Click to expand...
 
Your best solution is to get a modulator. If you start to modify the set,
you must be sure that the set is properly electrically isolated from the
mains, or it will not be a safe modification. There is also the fact of
having the proper impedance match between the set and the player.

It is too bad you want to use a 20 year old set with a DVD player. The
modern sets have very high video bandwidth, and very fine phosphor dot pitch
in the CRT compared to your old set. The picture quality is much higher on
the new sets. There is no way your 20 year old set would be able to
reproduce the pictures in any great detail from the DVD player. Also, the
DVD player can output stereo and surround sound, which you will not be able
to enjoy with an old set.

--

Jerry G.
=====


"Fabian Amann" <news@amann.twam.info> wrote in message
news:2h9ctaFale8kU1@uni-berlin.de...
Hi!
I've got a big problem - perhaps anybody can help me:

I want to connect my DVD player to my TV, but there is a problem: The TV
(Telefunken PALcolor 560V) is very old (20 years *g*) and it has no Video
input. It has a 6 pin diode connector, but only the audio relevant pins are
connected. The pin, where video should be transferred is not connected.
So, my idea:
Up to now, I have viewed DVD with my videorecorder in the middle, to
modulate the incoming videosignal from the DVD, so my TV can "read" it. But
there is one problem: When I am playing some DVDs, the picture starts
lighting up slowly, then the picture goes to dark and then it flashes. And
the same procedure again. So I measured the composite out of my DVD with an
oscilloscope and I found out, that, when I am playing some DVDs, on
TV-Scan-Line 2 to 10 occur a signal with about 200 kHz with variable
amplitude. Other scan lines are not affected. But if this signal runs
through my video tape recorder, the signal on the scan line 2 to 10 affected
the whole other and you can clearly see the diagram "dancing" in the rhythm
of this curious signal.
That's why I want to connect my DVD directly to my TV.
So far, my idea:
I will use the installed 6 pin diode connector. When a signal is connected
to this conector of the TV, the audio source from the tuner will be muted
and the signal from the 6 pin diode connector is played. No, I want to use
the signalling line from the 6 pin diode connector (I think +12 V (from the
DVD)) to switch a relay, which I want to locate between the composite output
from the tuner, from the opened line from tuner to the rest of TV and the
external composite input from the 6 pin diode connector.
But I have one problem: I do not know, where this location is in the TV? Or
do anyone now, if the tuner will give the demodulated composite signal
directly? Is there anyone who knows my TV or who has a datasheet or
schematics of this TV? Do anyone know this tuner-module?

Thank you very much!!!!
Fabian Amann

TV: Telefunken PALcolor 560V
TUNER-MODULE: On the side, there is a NSF logo
and following lines are on the tuner module:
Tuner 737 694
ET 066 DKC
AT-Nr. 349 357 054
The module has a four a wire cable and on the bottom 10 pins (3 of them are
connected with the chassis of the module), so there 7 pins which function i
do not know.
 
Hi Jerry!
Yes, I think so, too. It would be the easiest way, but I am a guy who wants
to get the best out of that "rubbish" ;)
For its age, the TV is relatively good, but you cannot compare with really
good TV sets nowadays.
I know, that the TV will not be able to reproduce the picture on high
quality, but I will try to get the best quality which will be possible with
these set. My mum won't buy a new TV set, if it still works. So if you want
to watch DVDs in the living room, there is only the way connecting the DVD
to the old TV set. I can watch DVD at my computer either, but there I do not
have Dolby Digital or dts. :/ In the living room there is a set which can
process and provice Dolby and dts. By the way, this old TV set can great
reproduce Stereo -- really! The sound of this TV is much better the one from
some actual TV sets.

Thank you Jerry for your opinion!
Fabian

"Jerry G." <jerryg50@hotmail.com> schrieb im Newsbeitrag
news:c8pr28$ehi$1@news.eusc.inter.net...
Your best solution is to get a modulator. If you start to modify the set,
you must be sure that the set is properly electrically isolated from the
mains, or it will not be a safe modification. There is also the fact of
having the proper impedance match between the set and the player.

It is too bad you want to use a 20 year old set with a DVD player. The
modern sets have very high video bandwidth, and very fine phosphor dot
pitch
in the CRT compared to your old set. The picture quality is much higher on
the new sets. There is no way your 20 year old set would be able to
reproduce the pictures in any great detail from the DVD player. Also, the
DVD player can output stereo and surround sound, which you will not be
able
to enjoy with an old set.

--

Jerry G.
=====


"Fabian Amann" <news@amann.twam.info> wrote in message
news:2h9ctaFale8kU1@uni-berlin.de...
Hi!
I've got a big problem - perhaps anybody can help me:

I want to connect my DVD player to my TV, but there is a problem: The TV
(Telefunken PALcolor 560V) is very old (20 years *g*) and it has no Video
input. It has a 6 pin diode connector, but only the audio relevant pins
are
connected. The pin, where video should be transferred is not connected.
So, my idea:
Up to now, I have viewed DVD with my videorecorder in the middle, to
modulate the incoming videosignal from the DVD, so my TV can "read" it.
But
there is one problem: When I am playing some DVDs, the picture starts
lighting up slowly, then the picture goes to dark and then it flashes. And
the same procedure again. So I measured the composite out of my DVD with
an
oscilloscope and I found out, that, when I am playing some DVDs, on
TV-Scan-Line 2 to 10 occur a signal with about 200 kHz with variable
amplitude. Other scan lines are not affected. But if this signal runs
through my video tape recorder, the signal on the scan line 2 to 10
affected
the whole other and you can clearly see the diagram "dancing" in the
rhythm
of this curious signal.
That's why I want to connect my DVD directly to my TV.
So far, my idea:
I will use the installed 6 pin diode connector. When a signal is connected
to this conector of the TV, the audio source from the tuner will be muted
and the signal from the 6 pin diode connector is played. No, I want to use
the signalling line from the 6 pin diode connector (I think +12 V (from
the
DVD)) to switch a relay, which I want to locate between the composite
output
from the tuner, from the opened line from tuner to the rest of TV and the
external composite input from the 6 pin diode connector.
But I have one problem: I do not know, where this location is in the TV?
Or
do anyone now, if the tuner will give the demodulated composite signal
directly? Is there anyone who knows my TV or who has a datasheet or
schematics of this TV? Do anyone know this tuner-module?

Thank you very much!!!!
Fabian Amann

TV: Telefunken PALcolor 560V
TUNER-MODULE: On the side, there is a NSF logo
and following lines are on the tuner module:
Tuner 737 694
ET 066 DKC
AT-Nr. 349 357 054
The module has a four a wire cable and on the bottom 10 pins (3 of them
are
connected with the chassis of the module), so there 7 pins which function
i
do not know.
Click to expand...
 
Jerry G. wrote:
Your best solution is to get a modulator. If you start to modify the
set, you must be sure that the set is properly electrically isolated
from the mains, or it will not be a safe modification. There is also
the fact of having the proper impedance match between the set and the
player.

Modulators are available on ebay for next to nothing. I've seen 'em go for
Click to expand...
less than $5.00.

It is too bad you want to use a 20 year old set with a DVD player. The
modern sets have very high video bandwidth, and very fine phosphor
dot pitch in the CRT compared to your old set. The picture quality is
much higher on the new sets. There is no way your 20 year old set
would be able to reproduce the pictures in any great detail from the
DVD player. Also, the DVD player can output stereo and surround
sound, which you will not be able to enjoy with an old set.
Click to expand...
Not everyone cares...they just want to watch their movies. Not everyone can
afford the 'latest, greatest and biggest. Nothing 'too bad' about that,
IMHO...just the way it is. Why trash a perfectly good--but not
techonologically cutting edge--TV because it's not the latest thing? It'll
eventually die, and be replaced, in it's own good time.

jak
 
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